Improvement in alarms for carping-machines



UNITED STATES PATENT OFFICE.

FREDERICK WAGNER, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVELMENT IN ALARMS FOR CARDING-NIACHINES.

Specification forming part of Letters Patent N0. 150.378, dated April 28, 1874; application filed March 30, 1874.

To all whom t may concern:

Be it known that I, FREDERICK WAGNER, of Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented a certain new and useful Alarm for Self-Feedn g Cards; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use it, reference being had to the accompanying drawings, which form part of this specification, in which- Figure 1 is a front, and Fig. 2 a side, elevation of my invention.

The object of my invention is to provide an automatic alarm for self-feeding cards. The nature of my invention consists in the arrangement of the devices hereinafter described, which, when the feed breaks, will give notice of the accident by sounding an alarm.

In carrying my invention into effect I employ a roller, which rests upon the feed or stock being fed in to the card, this roller being so arranged that when the feed, from breakage or other cause, is withdrawn from beneath it, it will fall or descend some distance, say, tothe belts or apron on which the feed rests. In its downward motion it carries with it the standard on which its shaft is journaled, causing said shaft to incline in such manner that a projecting arm will be brought in contact with a set-screw or other projection on a rotating shaft. This arm, which proceeds from a shaft to which is secured a bell, will be raised at every revolution of the set-screw, causing the bell to ring, and thereby give the necessary alarm.

Referring to the accompanying drawing, A is a bracket, made fast by a bolt on theframe of a carding-engine. B is a shaft, sustained in a vertical slot in such bracket, so as to be raised and lowered, as may be required. C is a standard, secured upon the opposite end of said shaft, and turning thereon. C is an extension or projection of said standard, having a long slot, c, in which fits the end of a shaft, d. D is a roller, mounted on said shaft, and designed to rest upon the feed, so as to be rotated by said feed as it moves in to the card. E is a shaft, sustained by a bracket, F, upon the standard O, and supporting an arm, G, and bell or other equivalent device H.

Should the feed break the roller D will descend to the feeding-apron, the standard C then inclining in suchmanner that the projectingarm G will be brought in contact with a set-screw or other projection from a revolving shaft. At every revolution'of said'shaft the set-screw strikes the projecting-arm, turning the shaft E, ringing the bell H, and thereby giving an alarm. The set-screw, which strikes the arm G, may be that by which one of the gear-wheels for giving motion to the traveler in a self-feed77 is secured to its shaft.

Vhat I claim as my invention is- The combination, with the bell H and rod G attached to the shaft E, of the standard U supporting said shaft, and sustained by the self-adjusting roller D, the several parts being constructed and arranged substantially as and for the purpose specified.

In testimony that I claim the foregoing I have hereunto set my hand this 21st day of March, 1874.

FREDR. WAGNER. I/Vitnesses M. DANL. CoNNoLLv, EUGENE P. EADsoN. 

